Historical weather data, all-time temperature records, and monthly climate averages for Glenmont, MD. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Glenmont sits squarely in the unpredictable shoulder of spring — the average high of 62° sounds pleasant, but 81 years of history show this date has swung from a brutal 21° in 1965 to a shirt-sleeve 85° in 2011. There's roughly a 1-in-3 chance of rain today, so keep a jacket handy either way.
Glenmont's weather has real teeth at the extremes — 103° in July 1988 and -15° in January 1957 represent a 118-degree range of human suffering and delight. The wettest single day on record dumped 9.38 inches in August 1955, and a February 2010 snowstorm buried the area under 22 inches in one shot.
Summer is the main event here, with highs peaking around 87-88° in mid-July and the wettest stretch of the year landing in early-to-mid July as well — expect heat and afternoon storms if you're visiting then. If you want cooler, drier conditions, aim for October (avg high 68°) or late April through May before the humidity sets in. January and February are the coldest months, hovering in the low-to-mid 40s on a good day.